21,000 gallons inground. cl 5.0 ph 6.8 cya 50 ta 150
i had posted in the alage section problems encountered
had been keeping pool to shock to rid the green, green now gone
then had problem with brown stains
added 2 quarts of pool magnet plus for metals
has helped with the stains but some still there
haven't added bleach since last night
questions now: do i add my gallon of bleach now to maintain cl levels?
do i add ph increaser now too and if so same time as bleach?
do i add any more pool magnet plus for the remaining
stains now too and if so can it be added same time too?

I need to know the steps on how to continue and with what?
please help advise me so i know what is next and not screw up the progress i have made thus far. thank you.